Rename fetchTransactions to fetchAddressHistory

packages/docs/src/tools/stack/blockchain-functions.ts

@@ -1,11 +1,17 @@
-import { BlockchainElectrum, encodeExtendedJson, Transaction } from '@xocash/stack';
+import {
+  BlockchainElectrum,
+  encodeExtendedJson,
+  Transaction,
+} from '@xocash/stack';
 
 export const electrumClient = {
   from: [
     {
       label: 'From Servers',
       inputs: ['Servers'],
-      models: ['bch.imaginary.cash, cashnode.bch.ninja, electrum.imaginary.cash'],
+      models: [
+        'bch.imaginary.cash, cashnode.bch.ninja, electrum.imaginary.cash',
+      ],
       callback: async (args: [string]) => {
         const electrum = await BlockchainElectrum.from({
           opts: {
@@ -39,11 +45,11 @@ export const electrumClient = {
       },
     },
     {
-      label: 'Fetch Transactions',
+      label: 'Fetch Address History',
       inputs: ['Address'],
       models: ['Address'],
       callback: async (electrum: BlockchainElectrum, args: [string]) => {
-        const transactions = await electrum.fetchTransactions(args[0]);
+        const transactions = await electrum.fetchAddressHistory(args[0]);
         return encodeExtendedJson(transactions.toArray(), 2);
       },
     },
@@ -57,4 +63,4 @@ export const electrumClient = {
       },
     },
   ],
-};
+};

packages/stack/src/blockchain/base-blockchain.ts

@@ -83,7 +83,15 @@ export abstract class BaseBlockchain extends EventEmitter<BlockchainEvents> {
    * @returns {Promise<BlockchainTransactions>} A promise that resolves with the list of transactions
    * @throws {Error} If the address is invalid or the query fails
    */
-  abstract fetchTransactions(address: string): Promise<BlockchainTransactions>;
+  abstract fetchAddressHistory(
+    address: string,
+  ): Promise<BlockchainTransactions>;
+
+  // TODO: We may have a fetchTokenHistory in future, but Fulcrum does not currently support indexing tokens.
+  //       There are actually a few functional discrepancies with the adapters: different adapters grant different capabilities.
+  //       For example, Chaingraph can fetch token and address history. But BCHN P2P network cannot even fetch address history.
+  //       We might want to handle this by having multiple BlockchainInterfaces (e.g. IBlockchainAddressSubscriptions) that describe capabilities.
+  //       But we should return to that later.
 
   /**
    * Broadcasts a raw transaction to the blockchain network.

packages/stack/src/blockchain/blockchain-electrum.ts

@@ -69,9 +69,7 @@ export class BlockchainElectrum extends BaseBlockchain {
   store: BaseStore;
   opts: BlockchainElectrumOpts;
 
-  constructor(
-    public readonly params: BlockchainElectrumParams = {},
-  ) {
+  constructor(public readonly params: BlockchainElectrumParams = {}) {
     super();
 
     // Set the store, or use the memory store by default.
@@ -266,7 +264,7 @@ export class BlockchainElectrum extends BaseBlockchain {
     return transaction;
   }
 
-  async fetchTransactions(address: string) {
+  async fetchAddressHistory(address: string) {
     // Wait for connection to be established before attempting to subscribe.
     // TODO: Consider doing this at a higher level.
     if (!this.isConnected) {

packages/stack/src/blockchain/blockchain-local.ts

@@ -71,7 +71,7 @@ export class BlockchainLocal extends BaseBlockchain {
     return tx.transaction;
   }
 
-  async fetchTransactions(address: string) {
+  async fetchAddressHistory(address: string) {
     return this.transactions.filter((tx) => {
       // Check if any input or output involves the address
       // This is a simplified check and might need to be more sophisticated in a real implementation

packages/stack/src/blockchain/blockchain.ts

@@ -60,11 +60,11 @@ export class Blockchain extends BaseBlockchain {
     }
   }
 
-  async fetchTransactions(address: string) {
+  async fetchAddressHistory(address: string) {
     if (this.blockchainElectrum.isConnected) {
-      return await this.blockchainElectrum.fetchTransactions(address);
+      return await this.blockchainElectrum.fetchAddressHistory(address);
     } else {
-      return await this.blockchainLocal.fetchTransactions(address);
+      return await this.blockchainLocal.fetchAddressHistory(address);
     }
   }
 

packages/stack/src/wallet/wallet-p2pkh.ts

@@ -241,7 +241,7 @@ export class WalletP2PKH extends BaseWallet<WalletP2PKHEvents> {
     const address = await this.getReceivingAddress();
 
     // Get transactions involving this address.
-    const transactions = await this.blockchain.fetchTransactions(
+    const transactions = await this.blockchain.fetchAddressHistory(
       address.toCashAddr(),
     );